The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7336664 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 26, 2008

Filed:

Dec. 17, 2002
Applicant:

Frederico Buchholz Maciel, Kokubunji, JP;

Inventor:

Frederico Buchholz Maciel, Kokubunji, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention improves input/output speed by multiplexing/demultiplexing data and also reducing the processing time required for interrupt handling. The present invention involves a process which requests input/output operation; an adapter which performs input/output operation based on the request from the process; and a scheduler which keeps the process in wait state while the adapter is performing input/output operation. When the input/output operation of the adapter is completed, the state of the process waiting for the completion of the operation is changed into 'runnable' by the adapter, and the execution of the process which requested input/output operation is thereby restarted.


Find Patent Forward Citations

Maciel, Frederico. (2008). Data processing device and its input/output method and program (U.S. Patent No. 7336664). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7336664

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